【ElasticSearch】异常记录

=======================================================================

1、Request cannot be executed; I/O reactor status: STOPPED

2、max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

3、whose UTF8 encoding is longer than the max length 32766

4、Trying to create too many buckets. Must be less than or equal to: [65536] but was [65537]. This limit can be set by changing the [search.max_buckets] cluster level setting.

 

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1、Request cannot be executed; I/O reactor status: STOPPED

复制代码

Caused by: java.lang.RuntimeException: Request cannot be executed; I/O reactor status: STOPPED at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:857) at org.elasticsearch.client.RestClient.performRequest(RestClient.java:259) at org.elasticsearch.client.RestClient.performRequest(RestClient.java:246) at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1613) at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1583) at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1553) at org.elasticsearch.client.RestHighLevelClient.search(RestHighLevelClient.java:1069) at com.deyatech.esutil.service.impl.ElasticSearchServiceImpl.selectDataByESQueryJSON(ElasticSearchServiceImpl.java:581) at com.deyatech.esutil.service.impl.ElasticSearchServiceImpl.searchData(ElasticSearchServiceImpl.java:548) at com.deyatech.reception.service.impl.InfoTemplateEsServiceImpl.getElaticsearchResult(InfoTemplateEsServiceImpl.java:251) at com.deyatech.reception.service.impl.InfoTemplateEsServiceImpl.getTemplateListView(InfoTemplateEsServiceImpl.java:120) at com.deyatech.reception.service.impl.InfoTemplateServiceImpl.getTemplateListView(InfoTemplateServiceImpl.java:221) at com.deyatech.reception.service.impl.InfoTemplateServiceImpl$$FastClassBySpringCGLIB$$aadf779.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.cache.interceptor.CacheInterceptor.lambda$invoke$0(CacheInterceptor.java:53) at org.springframework.cache.interceptor.CacheAspectSupport.invokeOperation(CacheAspectSupport.java:366) at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:421) at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:346) at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) at com.deyatech.reception.service.impl.InfoTemplateServiceImpl$$EnhancerBySpringCGLIB$$6d755bd7.getTemplateListView(<generated>) at com.deyatech.reception.thymeleaf.InfoDataExpressionObject.getInfoList(InfoDataExpressionObject.java:47) at sun.reflect.GeneratedMethodAccessor1001.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:902) at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1547) ... 113 common frames omitted Caused by: java.lang.IllegalStateException: Request cannot be executed; I/O reactor status: STOPPED at org.apache.http.util.Asserts.check(Asserts.java:46) at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase.ensureRunning(CloseableHttpAsyncClientBase.java:90) at org.apache.http.impl.nio.client.InternalHttpAsyncClient.execute(InternalHttpAsyncClient.java:123) at org.elasticsearch.client.RestClient.performRequest(RestClient.java:255) ... 143 common frames omitted
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github已提的问题

https://github.com/elastic/elasticsearch/issues/42133

https://github.com/elastic/elasticsearch/issues/45115

https://github.com/elastic/elasticsearch/issues/49124

https://github.com/elastic/elasticsearch/issues/39946

 

一些可以尝试的方法来解决问题

After some debugging and configuration tuning, I found that the exception was caused by too many concurrent ElasticSearch clients. After I reduce the number of concurrent clients, the exception is gone.
减少客户端的数量,使用的地方都注入。

 I'm using the client at scheduled method, so every invocation is started in new thread. The client has been injected to the service and never closed. Seems that is the reason of exception in my case. I changed my implementation so a new client is created at every thread when it is needed and closes in the end of method. That fixed the issue.
每次使用都新创建客户端,用完后关闭。

自己构建 RestHighLevelClient 使用 HttpComponents,链接STOP时重新构造客户端

 

2、max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

vi /etc/sysctl.conf
# 添加 一行
vm.max_map_count=655360
# 加载参数
sysctl -p

3、whose UTF8 encoding is longer than the max length 32766

Document contains at least one immense term in field=\"summary\" (whose UTF8 encoding is longer than the max length 32766), all of which were skipped.  Please correct the analyzer to not produce such terms.  The prefix of the first immense term is: '[56, -26, -100, -120, 50, 54, -26, -105, -91, -17, -68, -116, -28, -71, -96, -24, -65, -111, -27, -71, -77, -26, -128, -69, -28, -71, -90, -24, -82, -80]...'

summary时keyword类型,长度超了可以忽略超过的部分

PUT myindex/_mapping
{
  "properties": {
    "summary": {
      "type": "keyword",
      "ignore_above": 10000
    }
  }
}

终端

curl -XPOST http://localhost:9200/myindex/_mapping -H 'Content-Type:application/json' -d '
{
  "properties": {
    "summary": {
      "type": "keyword",
      "ignore_above": 10000
    }
  }
}
'

4、Trying to create too many buckets. Must be less than or equal to: [65536] but was [65537]. This limit can be set by changing the [search.max_buckets] cluster level setting.

修改最大桶数

PUT /_cluster/settings
{
  "persistent" : {
    "search.max_buckets" : 99999
  }
}

查看配置

GET _cluster/settings

 

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